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Why a GUI looks different on different Windows versions?

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  • F Flavio Mesquita

    @sierdzio Hi, I used Qt creator 4.6.1, with Qt5.10. I downloaded it about a month ago.

    sierdzioS Offline
    sierdzioS Offline
    sierdzio
    Moderators
    wrote on last edited by
    #5

    @Flavio-Mesquita said in Why a GUI looks different on different Windows versions?:

    @sierdzio Hi, I used Qt creator 4.6.1, with Qt5.10. I downloaded it about a month ago.

    OK that is recent enough.

    When you say you run it under Windows 10, does it mean you compile it on Win10, or compile on Win7 and copy the .exe file to Win10, then open?

    If the latter, then check out https://doc.qt.io/qt-5/windows-deployment.html

    (Z(:^

    F 1 Reply Last reply
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    • sierdzioS sierdzio

      @Flavio-Mesquita said in Why a GUI looks different on different Windows versions?:

      @sierdzio Hi, I used Qt creator 4.6.1, with Qt5.10. I downloaded it about a month ago.

      OK that is recent enough.

      When you say you run it under Windows 10, does it mean you compile it on Win10, or compile on Win7 and copy the .exe file to Win10, then open?

      If the latter, then check out https://doc.qt.io/qt-5/windows-deployment.html

      F Offline
      F Offline
      Flavio Mesquita
      wrote on last edited by
      #6

      @sierdzio I had already looked at he document you referenced and compiled it on windows 7. Used the windeployqt, that copied all the dependency files to the folder. Then I copied the whole folder with the .exe file together and put it in a computer with windows 10. When clicking on .exe file it executes, but looks weird.

      I did like said in the document:

      "The tool can be found in QTDIR/bin/windeployqt. It takes an .exe file or a directory that contains an .exe file as an argument, and scans the executable for dependencies. If a directory is passed with the --qmldir argument, windeployqt uses the qmlimportscanner tool to scan QML files inside the directory for QML import dependencies. Identified dependencies are then copied to the executable's directory. The hardcoded local paths in Qt5Core.dll are furthermore replaced with relative ones.

      For Windows desktop applications, the required runtime files for the compiler are also copied to the deployable folder by default (unless the option --no-compiler-runtime is specified). In the case of release builds using Microsoft Visual C++, these consist of the Visual C++ Redistributable Packages, which are intended for recursive installation by the application's installer on the target machine. Otherwise, the shared libraries of the compiler runtime are used."

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      • joeQJ joeQ

        @Flavio-Mesquita
        Hi, friend. welcome.

        Different system has the different windows, dialog, and button ... styles.

        Qt default used the system style.

        When you using Qt Widget in Win7, Qt default use Win7 Dialog style.
        When you using Qt Widget in Win10, Qt default use Win10 Dialog style.
        and also has Mac system,Ubuntu system, They are both different.

        If you want to uniform style of widgets in different system.

        The only way is to repaint widget, like subclass QWidget,, or use QSS.

        more information, please to see Qt help manual.

        like QPushButton QTabWidget QLabel ... Widget class.

        F Offline
        F Offline
        Flavio Mesquita
        wrote on last edited by Flavio Mesquita
        #7

        @joeQ what do u mean by QSS?

        aha_1980A 1 Reply Last reply
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        • F Flavio Mesquita

          @joeQ what do u mean by QSS?

          aha_1980A Offline
          aha_1980A Offline
          aha_1980
          Lifetime Qt Champion
          wrote on last edited by
          #8

          @Flavio-Mesquita said in Why a GUI looks different on different Windows versions?:

          @joeQ what do u mean by QSS?

          Probably Style Sheets

          Qt has to stay free or it will die.

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          • F Offline
            F Offline
            Flavio Mesquita
            wrote on last edited by
            #9

            Hy guys I ended up using as the example at the documentation:
            QApplication::setStyle(QStyleFactory::create("Fusion"));
            just added this line on the main.cpp, it worked fine.

            Just one more question, I want to add a logo on the widget, it works fine on my computer, but if I want it to load on another computer do i have to create a folder with the same address as it was on my computer and put the image.png there?

            mrjjM 1 Reply Last reply
            0
            • F Flavio Mesquita

              Hy guys I ended up using as the example at the documentation:
              QApplication::setStyle(QStyleFactory::create("Fusion"));
              just added this line on the main.cpp, it worked fine.

              Just one more question, I want to add a logo on the widget, it works fine on my computer, but if I want it to load on another computer do i have to create a folder with the same address as it was on my computer and put the image.png there?

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by mrjj
              #10

              @Flavio-Mesquita said in Why a GUI looks different on different Windows versions?:

              Just one more question, I want to add a logo on the widget, it works fine on my computer, but if I want it to load on another computer do i have to create a folder with the same address as it was on my computer and put the image.png there?

              Hi, it would be far better to put logo in resource file so its included in the exe.

              http://doc.qt.io/qt-5/resources.html

              http://www.bogotobogo.com/Qt/Qt5_Resource_Files.php

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              • F Offline
                F Offline
                Flavio Mesquita
                wrote on last edited by
                #11

                @mrjj Thanks for the answer, that is what I like about this community, u guys are always willing to help noobs like me. I did what u pointed , it works fine, still gives a warning like below, but it works. Thank u very much.

                C:\Users\Flavio\Documents\qtTest\interface2_v2\main.cpp:9: warning: label 'read' defined but not used [-Wunused-label]
                read:(":/logo/uff.png");
                ^

                mrjjM m4l490nM 2 Replies Last reply
                0
                • F Flavio Mesquita

                  @mrjj Thanks for the answer, that is what I like about this community, u guys are always willing to help noobs like me. I did what u pointed , it works fine, still gives a warning like below, but it works. Thank u very much.

                  C:\Users\Flavio\Documents\qtTest\interface2_v2\main.cpp:9: warning: label 'read' defined but not used [-Wunused-label]
                  read:(":/logo/uff.png");
                  ^

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  Well we love beginners here :)
                  I think it says you have a variable you dont use.
                  Anywhow, just to be clear
                  iF you have a QLabel to show logo in. ( not sure what widget you have)
                  Then you can do
                  Label->setPixmap( QPixmap(":/logo/uff.png"));

                  Not sure what read: is :)

                  F 1 Reply Last reply
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                  • mrjjM mrjj

                    Well we love beginners here :)
                    I think it says you have a variable you dont use.
                    Anywhow, just to be clear
                    iF you have a QLabel to show logo in. ( not sure what widget you have)
                    Then you can do
                    Label->setPixmap( QPixmap(":/logo/uff.png"));

                    Not sure what read: is :)

                    F Offline
                    F Offline
                    Flavio Mesquita
                    wrote on last edited by Flavio Mesquita
                    #13

                    @mrjj on the example about the resources, besides adding the resource file to the project we had to add a line with the read command pointing to the logo path at the main.cpp file. maybe it was not necessary since I had the code implementing it under the interface.cpp as u mentioned.
                    Thanks anyway, soon I will come up with lots of more projects since I´m pushing to my teachers at the college to use Qt as our main tool for GUI development classes in the next semester.

                    mrjjM 1 Reply Last reply
                    0
                    • F Flavio Mesquita

                      @mrjj on the example about the resources, besides adding the resource file to the project we had to add a line with the read command pointing to the logo path at the main.cpp file. maybe it was not necessary since I had the code implementing it under the interface.cpp as u mentioned.
                      Thanks anyway, soon I will come up with lots of more projects since I´m pushing to my teachers at the college to use Qt as our main tool for GUI development classes in the next semester.

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      @Flavio-Mesquita
                      Sounds not needed but not 100% sure what you do with it.
                      I guess my point was if you can use QPixmap/QImage directly, you dont need QFile or anything like that.

                      Oh, that sounds like a great plan. I hope he will.

                      1 Reply Last reply
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